Setts



(No Model.)

G. F. NEWELL.

PIPE WRENCH.

NQ. 411.872. Patented oet. 1, 1889.

gew/fe y mor/.55W 57h UNITED STATES PATENT EEICE.

GEORGE F. NEIVELL, OF NEW'TON, IWIASSAOHUSETTS, ASSIGNOR TO STILESFROST, OF SAME PLACE, AND F. L. FERGUSON, OF BYFIELD, MASSACHU- SETTS.

PIPE-WRENCH.'

SPECIFICATION forming part of Letters Patent No. 411,872, dated Octoberl, 1889.

Application filed January 2l, 1889. Serial No. 297,006. (No model.)

To all whom t may concern:

Ee it known that I, GEORGE F. NEWELL, a citizen of the United States ofAmerica, residing at Newton, in the county of Middlesex and State ofMassachusetts, have invented eertain new and useful Improvements inPipelVrenehes, of which the following is a specifieation,reference beinghad therein to the aecompanying drawings.

1o This invention relates to an improvement in diagonal pipe-Wrench especuliarly adapted to gripping and turning cylindrical objects, such aspipes and round rods; and the invention consists in the construction andar- [5 rangement of parts to facilitate the gripping of small pipes androds between the jaws and the retention. of the operating-nut, ashereinafter described, and specifically set forth in the claims.

zo In the accompanying drawings, Figure l is a side view, partly insection, of a pipe-Wrench constructed in accordance with myinvention.Fig. 2 is a side view of the main portion of the same. Fig. 3 is abottom View of the stationary jaw.

In said drawings, A represents the body or perforated portion of. a bentlever having at one end the handle A and at the opposite end thestationary jaw A2 of the Wrench.

3o The body A has va central perforation h at right angles to said bodyfor the passage of the stem O of the movable jaw C2 of the Wrench. Thisstem is quadrangular, but has screw-threads c upon its two segmentalsides to permit its adjustability relatively to the jaw A2. To permitsaid adjustability, a nut D is placed upon the stem C, and to retain itconnected to the body A a peripheral groove d. is made in said nut, andtwo hooked lips b2 .io are formed in the outer face of the body A, ofsuitable thickness to freely enter the groove d and permit the 'nut tobe rotated,but prevent it from beeomin g accidentally separated from thebody of the Wrench. The movable jaw C'2 has its inner face provided witha serrated 45 plate c2, dovetailed therein and retained by alocking-screw e3, entering one of its edges and screwed into said jaw.

The face a of the stationary jaiv A2 is beveled, so as to form an acuteangle with the 5o serrated face of the jaw O2, and the inner end of saidbeveled face is provided with a flatfaee tooth a2, the gripping-edge a3of which is beveled, so as to overhang the face a of the jaw. Said tooth0,2 not only forms an abutment to prevent the inwardly sliding andcrushing of any thin pipe upon which the Wrench may be used, but theacute overhanging edge a3 of the tooth readily engages with the surfaceof said pipe, and, in connection 6o with the serrated plate ci,firmlygrips the pipe and insures its revolution When the wrench isrotated.

IIa-ving now fully described myinvention, I claiml. In a pipe-wrench,the combination of a lever having the body A perforated, and hooked lipslf2 on the sides of the perforation, and a toothed jaw at one end, withthe nut D, having a peripheral groove, and the movable 7o jaw having itsstern screw-threaded and inserted through the perforation of the body ofthe lever, substantially as described.

In a pipe-wrench, the combination of a .lever having the body Aperforated, and hooked lips o2 on the sides of the perforation, and ajaw at one end, having a beveled face o. and a tooth the edge of whichoverhangs said beveled face, with the eircumferentiallygrooved nut D andthe serrated movable jaiv 8o having its stem passing through the lever,substantially as shown and described.

In testimony whereof I afx my signature in presence of two Witnesses.

GEORGE F. NEWELL.

IVitnesses: A

CHAs. W. LAvERs, S'riLns Fnos'r.

